Structure and Properties of Amino Acids The α-amino acids have a carboxyl group with a pK around __________ , and an amino group with a pK near __________ . 2.2, and 9.4 1.1, and 12.1 6.5, and 8.0 3.3, and 10.5 2.2, and 9.4 1.1, and 12.1 6.5, and 8.0 3.3, and 10.5 ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Amino Acids Which amino acid when exposed to ninhydrin produces a brown color? Proline Alanine Asparagine Valine Proline Alanine Asparagine Valine ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Amino Acids Protein fluorescence arises primarily from which residue? Tryptophan Tyrosine Arginine Phenylalanine Tryptophan Tyrosine Arginine Phenylalanine ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Amino Acids Which of the following is an essential amino acid? Methionine Lysine All of these Tryptophan Methionine Lysine All of these Tryptophan ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Amino Acids Which of the following is a nonstandard amino acid? Histidine Cysteine Isoleucine Hydroxyproline Histidine Cysteine Isoleucine Hydroxyproline ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Amino Acids Which amino acids would most likely reside in the membrane-anchoring domain of a membrane embedded protein? Lysine, arginine and histidine Phenylalanine, valine, and aspartate Isoleucine, valine and phenylalanine Leucine, threonine, and lysine Lysine, arginine and histidine Phenylalanine, valine, and aspartate Isoleucine, valine and phenylalanine Leucine, threonine, and lysine ANSWER DOWNLOAD EXAMIANS APP
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